fix broken cluster/centos and enhance the style

cluster/centos/build.sh

@@ -64,8 +64,8 @@ function unpack-releases() {
   # flannel
   if [[ -f ${RELEASES_DIR}/flannel.tar.gz ]] ; then
     tar xzf ${RELEASES_DIR}/flannel.tar.gz -C ${RELEASES_DIR}
-    cp ${RELEASES_DIR}/flannel-${FLANNEL_VERSION}/flanneld ${BINARY_DIR}/master/bin
-    cp ${RELEASES_DIR}/flannel-${FLANNEL_VERSION}/flanneld ${BINARY_DIR}/node/bin
+    cp ${RELEASES_DIR}/flanneld ${BINARY_DIR}/master/bin
+    cp ${RELEASES_DIR}/flanneld ${BINARY_DIR}/node/bin
   fi
 
   # ectd
@@ -96,8 +96,8 @@ function unpack-releases() {
   fi
 
   # docker
-  if [[ -f ${RELEASES_DIR}/docker.tar.gz ]]; then
-    tar xzf ${RELEASES_DIR}/docker.tar.gz -C ${RELEASES_DIR}
+  if [[ -f ${RELEASES_DIR}/docker.tgz ]]; then
+    tar xzf ${RELEASES_DIR}/docker.tgz -C ${RELEASES_DIR}
 
     cp ${RELEASES_DIR}/docker/docker* ${BINARY_DIR}/node/bin
   fi

cluster/centos/config-build.sh

@@ -20,22 +20,22 @@
 RELEASES_DIR=${RELEASES_DIR:-/tmp/downloads}
 
 # Define docker version to use.
-DOCKER_VERSION=${DOCKER_VERSION:-"1.12.0"}
+DOCKER_VERSION=${DOCKER_VERSION:-"1.12.1"}
 
 # Define flannel version to use.
-FLANNEL_VERSION=${FLANNEL_VERSION:-"0.5.5"}
+FLANNEL_VERSION=${FLANNEL_VERSION:-"0.6.1"}
 
 # Define etcd version to use.
-ETCD_VERSION=${ETCD_VERSION:-"2.2.1"}
+ETCD_VERSION=${ETCD_VERSION:-"3.0.9"}
 
 # Define k8s version to use.
-K8S_VERSION=${K8S_VERSION:-"1.3.5"}
+K8S_VERSION=${K8S_VERSION:-"1.3.7"}
 
 DOCKER_DOWNLOAD_URL=\
 "https://get.docker.com/builds/Linux/x86_64/docker-${DOCKER_VERSION}.tgz"
 
 FLANNEL_DOWNLOAD_URL=\
-"https://github.com/coreos/flannel/releases/download/v${FLANNEL_VERSION}/flannel-${FLANNEL_VERSION}-linux-amd64.tar.gz"
+"https://github.com/coreos/flannel/releases/download/v${FLANNEL_VERSION}/flannel-v${FLANNEL_VERSION}-linux-amd64.tar.gz"
 
 ETCD_DOWNLOAD_URL=\
 "https://github.com/coreos/etcd/releases/download/v${ETCD_VERSION}/etcd-v${ETCD_VERSION}-linux-amd64.tar.gz"

cluster/centos/config-default.sh

@@ -37,12 +37,22 @@ export ETCD_SERVERS=${ETCD_SERVERS:-"http://$MASTER_IP:2379"}
 # according to rfc 1918 ref: https://tools.ietf.org/html/rfc1918 choose a private ip range here.
 export SERVICE_CLUSTER_IP_RANGE=${SERVICE_CLUSTER_IP_RANGE:-"192.168.3.0/24"}
 
+# Optional: Install cluster DNS.
+ENABLE_CLUSTER_DNS="${KUBE_ENABLE_CLUSTER_DNS:-true}"
+# DNS_SERVER_IP must be a IP in SERVICE_CLUSTER_IP_RANGE
+DNS_SERVER_IP=${DNS_SERVER_IP:-"192.168.3.100"}
+DNS_DOMAIN=${DNS_DOMAIN:-"cluster.local"}
+DNS_REPLICAS=${DNS_REPLICAS:-1}
+
+# Optional: Install Kubernetes UI
+ENABLE_CLUSTER_UI="${KUBE_ENABLE_CLUSTER_UI:-true}"
+
 # define the IP range used for flannel overlay network, should not conflict with above SERVICE_CLUSTER_IP_RANGE
 export FLANNEL_NET=${FLANNEL_NET:-"172.16.0.0/16"}
 
 # Admission Controllers to invoke prior to persisting objects in cluster
 # If we included ResourceQuota, we should keep it at the end of the list to prevent incrementing quota usage prematurely.
-export ADMISSION_CONTROL=NamespaceLifecycle,NamespaceExists,LimitRanger,ServiceAccount,SecurityContextDeny,DefaultStorageClass,ResourceQuota
+export ADMISSION_CONTROL=NamespaceLifecycle,LimitRanger,ServiceAccount,ResourceQuota
 
 # Extra options to set on the Docker command line.
 # This is useful for setting --insecure-registry for local registries.

cluster/centos/deployAddons.sh

+#!/bin/bash
+
+# Copyright 2015 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# deploy the add-on services after the cluster is available
+
+set -e
+
+KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
+source "config-default.sh"
+KUBECTL="${KUBE_ROOT}/cluster/kubectl.sh"
+export KUBECTL_PATH="${KUBE_ROOT}/cluster/centos/binaries/kubectl"
+export KUBE_CONFIG_FILE=${KUBE_CONFIG_FILE:-${KUBE_ROOT}/cluster/centos/config-default.sh}
+
+function deploy_dns {
+  echo "Deploying DNS on Kubernetes"
+  sed -e "s/\\\$DNS_REPLICAS/${DNS_REPLICAS}/g;s/\\\$DNS_DOMAIN/${DNS_DOMAIN}/g;" "${KUBE_ROOT}/cluster/addons/dns/skydns-rc.yaml.sed" > skydns-rc.yaml
+  sed -e "s/\\\$DNS_SERVER_IP/${DNS_SERVER_IP}/g" "${KUBE_ROOT}/cluster/addons/dns/skydns-svc.yaml.sed" > skydns-svc.yaml
+
+  KUBEDNS=`eval "${KUBECTL} get services --namespace=kube-system | grep kube-dns | cat"`
+      
+  if [ ! "$KUBEDNS" ]; then
+    # use kubectl to create skydns rc and service
+    ${KUBECTL} --namespace=kube-system create -f skydns-rc.yaml 
+    ${KUBECTL} --namespace=kube-system create -f skydns-svc.yaml
+
+    echo "Kube-dns rc and service is successfully deployed."
+  else
+    echo "Kube-dns rc and service is already deployed. Skipping."
+  fi
+
+  echo
+}
+
+function deploy_dashboard {
+    if ${KUBECTL} get rc -l k8s-app=kubernetes-dashboard --namespace=kube-system | grep kubernetes-dashboard-v &> /dev/null; then
+        echo "Kubernetes Dashboard replicationController already exists"
+    else
+        echo "Creating Kubernetes Dashboard replicationController"
+        ${KUBECTL} create -f ${KUBE_ROOT}/cluster/addons/dashboard/dashboard-controller.yaml
+    fi
+
+    if ${KUBECTL} get service/kubernetes-dashboard --namespace=kube-system &> /dev/null; then
+        echo "Kubernetes Dashboard service already exists"
+    else
+        echo "Creating Kubernetes Dashboard service"
+        ${KUBECTL} create -f ${KUBE_ROOT}/cluster/addons/dashboard/dashboard-service.yaml
+    fi
+
+  echo
+}
+
+
+if [ "${ENABLE_CLUSTER_DNS}" == true ]; then
+  deploy_dns
+fi
+
+if [ "${ENABLE_CLUSTER_UI}" == true ]; then
+  deploy_dashboard
+fi
+

cluster/centos/master/scripts/apiserver.sh

@@ -105,4 +105,4 @@ EOF
 
 systemctl daemon-reload
 systemctl enable kube-apiserver
-systemctl start kube-apiserver
+systemctl restart kube-apiserver

cluster/centos/master/scripts/controller-manager.sh

@@ -53,4 +53,4 @@ EOF
 
 systemctl daemon-reload
 systemctl enable kube-controller-manager
-systemctl start kube-controller-manager
+systemctl restart kube-controller-manager

cluster/centos/master/scripts/etcd.sh

@@ -76,4 +76,4 @@ EOF
 
 systemctl daemon-reload
 systemctl enable etcd
-systemctl start etcd
+systemctl restart etcd

cluster/centos/master/scripts/flannel.sh

+#!/bin/bash
+
+# Copyright 2014 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+ETCD_SERVERS=${1:-"http://8.8.8.18:4001"}
+FLANNEL_NET=${2:-"172.16.0.0/16"}
+
+
+cat <<EOF >/opt/kubernetes/cfg/flannel
+FLANNEL_ETCD="-etcd-endpoints=${ETCD_SERVERS}"
+FLANNEL_ETCD_KEY="-etcd-prefix=/coreos.com/network"
+EOF
+
+cat <<EOF >/usr/lib/systemd/system/flannel.service
+[Unit]
+Description=Flanneld overlay address etcd agent
+After=network.target
+
+[Service]
+EnvironmentFile=-/opt/kubernetes/cfg/flannel
+ExecStart=/opt/kubernetes/bin/flanneld --ip-masq \${FLANNEL_ETCD} \${FLANNEL_ETCD_KEY}
+
+Type=notify
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+# Store FLANNEL_NET to etcd.
+attempt=0
+while true; do
+  /opt/kubernetes/bin/etcdctl --no-sync -C ${ETCD_SERVERS} \
+    get /coreos.com/network/config >/dev/null 2>&1
+  if [[ "$?" == 0 ]]; then
+    break
+  else
+    if (( attempt > 600 )); then
+      echo "timeout for waiting network config" > ~/kube/err.log
+      exit 2
+    fi
+
+    /opt/kubernetes/bin/etcdctl --no-sync -C ${ETCD_SERVERS} \
+      mk /coreos.com/network/config "{\"Network\":\"${FLANNEL_NET}\"}" >/dev/null 2>&1
+    attempt=$((attempt+1))
+    sleep 3
+  fi
+done
+wait
+
+systemctl enable flannel
+systemctl daemon-reload
+systemctl restart flannel

cluster/centos/master/scripts/scheduler.sh

@@ -55,4 +55,4 @@ EOF
 
 systemctl daemon-reload
 systemctl enable kube-scheduler
-systemctl start kube-scheduler
+systemctl restart kube-scheduler

cluster/centos/node/scripts/docker.sh

@@ -20,7 +20,7 @@ DOCKER_OPTS=${1:-""}
 DOCKER_CONFIG=/opt/kubernetes/cfg/docker
 
 cat <<EOF >$DOCKER_CONFIG
-DOCKER_OPTS="-H tcp://127.0.0.1:4243 -H unix:///var/run/docker.sock -s devicemapper --selinux-enabled=false ${DOCKER_OPTS}"
+DOCKER_OPTS="-H tcp://127.0.0.1:4243 -H unix:///var/run/docker.sock -s overlay --selinux-enabled=false ${DOCKER_OPTS}"
 EOF
 
 cat <<EOF >/usr/lib/systemd/system/docker.service
@@ -45,4 +45,4 @@ EOF
 
 systemctl daemon-reload
 systemctl enable docker
-systemctl start docker
+systemctl restart docker

cluster/centos/node/scripts/kubelet.sh

@@ -17,6 +17,8 @@
 
 MASTER_ADDRESS=${1:-"8.8.8.18"}
 NODE_ADDRESS=${2:-"8.8.8.20"}
+DNS_SERVER_IP=${3:-"192.168.3.100"}
+DNS_DOMAIN=${4:-"cluster.local"}
 
 
 cat <<EOF >/opt/kubernetes/cfg/kubelet
@@ -42,6 +44,10 @@ KUBELET_API_SERVER="--api-servers=${MASTER_ADDRESS}:8080"
 # --allow-privileged=false: If true, allow containers to request privileged mode. [default=false]
 KUBE_ALLOW_PRIV="--allow-privileged=false"
 
+# DNS info
+KUBELET__DNS_IP="--cluster-dns=${DNS_SERVER_IP}"
+KUBELET_DNS_DOMAIN="--cluster-domain=${DNS_DOMAIN}"
+
 # Add your own!
 KUBELET_ARGS=""
 EOF
@@ -53,6 +59,8 @@ KUBE_PROXY_OPTS="   \${KUBE_LOGTOSTDERR}     \\
                     \${NODE_HOSTNAME}        \\
                     \${KUBELET_API_SERVER}   \\
                     \${KUBE_ALLOW_PRIV}      \\
+                    \${KUBELET__DNS_IP}      \\
+                    \${KUBELET_DNS_DOMAIN}      \\
                     \${KUBELET_ARGS}"
 
 cat <<EOF >/usr/lib/systemd/system/kubelet.service
@@ -73,4 +81,4 @@ EOF
 
 systemctl daemon-reload
 systemctl enable kubelet
-systemctl start kubelet
+systemctl restart kubelet

cluster/centos/node/scripts/proxy.sh

@@ -53,4 +53,4 @@ EOF
 
 systemctl daemon-reload
 systemctl enable kube-proxy
-systemctl start kube-proxy
+systemctl restart kube-proxy

cluster/centos/util.sh

@@ -225,12 +225,15 @@ function provision-master() {
   # scp -r ${SSH_OPTS} master config-default.sh copy-files.sh util.sh "${MASTER}:${KUBE_TEMP}"
   kube-scp ${MASTER} "${ROOT}/../saltbase/salt/generate-cert/make-ca-cert.sh ${ROOT}/binaries/master ${ROOT}/master ${ROOT}/config-default.sh ${ROOT}/util.sh" "${KUBE_TEMP}"
   kube-ssh "${MASTER}" " \
+    rm -rf /opt/kubernetes/bin; \
     sudo cp -r ${KUBE_TEMP}/master/bin /opt/kubernetes; \
     sudo chmod -R +x /opt/kubernetes/bin; \
+    sudo ln -s /opt/kubernetes/bin/* /usr/local/bin/; \
     sudo bash ${KUBE_TEMP}/make-ca-cert.sh ${master_ip} IP:${master_ip},IP:${SERVICE_CLUSTER_IP_RANGE%.*}.1,DNS:kubernetes,DNS:kubernetes.default,DNS:kubernetes.default.svc,DNS:kubernetes.default.svc.cluster.local; \
     sudo bash ${KUBE_TEMP}/master/scripts/etcd.sh; \
     sudo bash ${KUBE_TEMP}/master/scripts/apiserver.sh ${master_ip} ${ETCD_SERVERS} ${SERVICE_CLUSTER_IP_RANGE} ${ADMISSION_CONTROL}; \
     sudo bash ${KUBE_TEMP}/master/scripts/controller-manager.sh ${master_ip}; \
+    sudo bash ${KUBE_TEMP}/master/scripts/flannel.sh ${ETCD_SERVERS} ${FLANNEL_NET}; \
     sudo bash ${KUBE_TEMP}/master/scripts/scheduler.sh ${master_ip}"
 }
 
@@ -249,15 +252,19 @@ function provision-node() {
   local master_ip=${MASTER#*@}
   local node=$1
   local node_ip=${node#*@}
+  local dns_ip=${DNS_SERVER_IP#*@}
+  local dns_domain=${DNS_DOMAIN#*@}
   ensure-setup-dir ${node}
 
   kube-scp ${node} "${ROOT}/binaries/node ${ROOT}/node ${ROOT}/config-default.sh ${ROOT}/util.sh" ${KUBE_TEMP}
   kube-ssh "${node}" " \
+    rm -rf /opt/kubernetes/bin; \
     sudo cp -r ${KUBE_TEMP}/node/bin /opt/kubernetes; \
     sudo chmod -R +x /opt/kubernetes/bin; \
+    sudo ln -s /opt/kubernetes/bin/* /usr/local/bin/; \
     sudo bash ${KUBE_TEMP}/node/scripts/flannel.sh ${ETCD_SERVERS} ${FLANNEL_NET}; \
     sudo bash ${KUBE_TEMP}/node/scripts/docker.sh \"${DOCKER_OPTS}\"; \
-    sudo bash ${KUBE_TEMP}/node/scripts/kubelet.sh ${master_ip} ${node_ip}; \
+    sudo bash ${KUBE_TEMP}/node/scripts/kubelet.sh ${master_ip} ${node_ip} ${dns_ip} ${dns_domain}; \
     sudo bash ${KUBE_TEMP}/node/scripts/proxy.sh ${master_ip}"
 }